Finding the Fourth Proportional to 12,994,381,817.10, 17,932,352,196.83 and 7,200,781,997.68

Step by Step Solution

1. Step 1: Write the proportion equation
   12,994,381,817.10 : 17,932,352,196.83 = 7,200,781,997.68 : x
2. Step 2: Convert to fraction form
   12,994,381,817.10/17,932,352,196.83 = 7,200,781,997.68/x
3. Step 3: Cross multiply
   12,994,381,817.10x = 17,932,352,196.83 × 7,200,781,997.68
4. Step 4: Simplify right side
   12,994,381,817.10x = 129,126,958,875,001,585,664
5. Step 5: Solve for x
   x = 129,126,958,875,001,585,664/12,994,381,817.10
6. Step 6: Final answer
   x = 9,937,137,502.39